Rename "container" to "image"

- Updated `wwctl upgrade` to handle updates
- Maintained `.Container` and `.ContainerName` in tstruct
- Added `ContainerName()` methods to node and profile objects
- Added `--container`, `-C` aliases to wwctl commands (`<node|profile> <add|set>`)
- Added `wwctl container` alias
- Added support for `container_exit.sh` if `image_exit.sh` is not found

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

internal/app/wwctl/image/imprt/main.go

@@ -0,0 +1,32 @@
+package imprt
+
+import (
+	"github.com/spf13/cobra"
+	apiimage "github.com/warewulf/warewulf/internal/pkg/api/image"
+	"github.com/warewulf/warewulf/internal/pkg/api/routes/wwapiv1"
+)
+
+func CobraRunE(cmd *cobra.Command, args []string) (err error) {
+
+	// Shim in a name if none given.
+	name := ""
+	if len(args) == 2 {
+		name = args[1]
+	}
+
+	cip := &wwapiv1.ImageImportParameter{
+		Source:      args[0],
+		Name:        name,
+		Force:       SetForce,
+		Update:      SetUpdate,
+		Build:       SetBuild,
+		SyncUser:    SyncUser,
+		OciNoHttps:  OciNoHttps,
+		OciUsername: OciUsername,
+		OciPassword: OciPassword,
+		Platform:    Platform,
+	}
+
+	_, err = apiimage.ImageImport(cip)
+	return
+}

internal/app/wwctl/image/imprt/root.go

@@ -0,0 +1,60 @@
+package imprt
+
+import (
+	"github.com/spf13/cobra"
+	"github.com/warewulf/warewulf/internal/pkg/wwlog"
+)
+
+var (
+	baseCmd = &cobra.Command{
+		DisableFlagsInUseLine: true,
+		Use:                   "import [OPTIONS] SOURCE [NAME]",
+		Short:                 "Import an image into Warewulf",
+		Aliases:               []string{"pull"},
+		Long: `This command will pull and import an image into Warewulf from SOURCE,
+optionally renaming it to NAME. The SOURCE must be in a supported URI format. Formats
+are:
+ * docker://registry.example.org/example:latest
+ * docker-daemon://example:latest
+ * file://path/to/archive/tar/ball
+ * /path/to/archive/tar/ball
+ * /path/to/chroot/
+Imported images are used to create bootable images.`,
+		Example: "wwctl image import docker://ghcr.io/warewulf/warewulf-rockylinux:8 rockylinux-8",
+		RunE:    CobraRunE,
+		Args:    cobra.MinimumNArgs(1),
+		PreRun: func(cmd *cobra.Command, args []string) {
+			if SetForce && SetUpdate {
+				wwlog.Warn("Both --force and --update flags are set, will ignore --update flag")
+			}
+		},
+	}
+	SetForce    bool
+	SetUpdate   bool
+	SetBuild    bool
+	SyncUser    bool
+	OciNoHttps  bool
+	OciUsername string
+	OciPassword string
+	Platform    string
+)
+
+func init() {
+	baseCmd.PersistentFlags().BoolVarP(&SetForce, "force", "f", false, "Force overwrite of an existing image")
+	baseCmd.PersistentFlags().BoolVarP(&SetUpdate, "update", "u", false, "Update and overwrite an existing image")
+	baseCmd.PersistentFlags().BoolVarP(&SetBuild, "build", "b", false, "Build image after pulling")
+	baseCmd.PersistentFlags().BoolVar(&SyncUser, "syncuser", false, "Synchronize UIDs/GIDs from host to image")
+	baseCmd.PersistentFlags().BoolVar(&OciNoHttps, "nohttps", false, "Ignore wrong TLS certificates, superseedes env WAREWULF_OCI_NOHTTPS")
+	baseCmd.PersistentFlags().StringVar(&OciUsername, "username", "", "Set username for the access to the registry, superseedes env WAREWULF_OCI_USERNAME")
+	baseCmd.PersistentFlags().StringVar(&OciPassword, "password", "", "Set password for the access to the registry, superseedes env WAREWULF_OCI_PASSWORD")
+	baseCmd.PersistentFlags().StringVar(&OciPassword, "passwd", "", "Set password for the access to the registry, superseedes env WAREWULF_OCI_PASSWORD")
+	_ = baseCmd.PersistentFlags().MarkHidden("passwd")
+	baseCmd.PersistentFlags().StringVar(&Platform, "platform", "", "Set other hardware platform e.g. amd64 or arm64, superseedes env WAREWULF_OCI_PLATFORM")
+	baseCmd.PersistentFlags().StringVar(&Platform, "arch", "", "Set other hardware platform, superseedes env WAREWULF_OCI_PLATFORM")
+	_ = baseCmd.PersistentFlags().MarkHidden("arch")
+}
+
+// GetRootCommand returns the root cobra.Command for the application.
+func GetCommand() *cobra.Command {
+	return baseCmd
+}